Typewriting machine



Feb. 2 3 1926. 1,574,199 I V `A. G. F. KURowsKl r TYPEWRITING MACHINE pagina@ Filed March 5, 1923 2. sheets-sheet 1 fx1 WL,

Patented Feb. `23, 1926.

' l,574,l9lli UNrrEn stares Arent orties.

ALFRED o, n. KURoWsKr, or BROOKLYN, New YORK, AssreNon To unnnmvoonY TYPEWRITER GOMFANY, OF NEW YORK, N. Y., A oonieonArroN on DELAWARE.

TYnnWnrrING MACHINE.

Appneation mea March 5, 192s, serial No. season. Renewed may 1, 1925.

, To @ZZ whom t may concern.'

Be it lrnoivn that l, ALFRED G. F. KUROWn siti, a. citizen oit the United States, residing in Brooklyn Eorough, in the county of King?, city and State ot New York, have invented cert-ain new and usetul improvements in Typeivriting Machines, 01"' which the followingl is a specification.

The present invention relates to type- Writing` machines, and more particularly to means 'for use in connection with tlie typing` or cuttingv of stencil cards, and is illustrated in connection with `teatures disclosed in my cto-pending application1 Serial No. 595,235, tiled October 18, 1922, and the co-pending application of Alvin Zugelter, Serial No. 617.253, tiled February G, 1923.

According to the present embodiment ot the invention, the partial rotation of the platen `tor inserting the stencil card may be eil'ected by means ot a finger-piece secured directly to the platen. This linger-piece is secured at one side ot' the tyl'iing Zone.

The rotative movement of the platen is limited by means ot' a stop projecting from one end ot the 'platen trame into a slot formed in a cap on the adjacent end of the platen. To vary the extent Ot the rotative movement, provision is made 01' a lever pivoted on the cap to be sivung over one end of the slot to bring' into position either one of tvvo pin-receiving` seats. to stop the platenin different.positions. Provision is f also made Ot means to stop the lever with either one of the seat in effective position and oi means to detain the lever in its limit- 1,9; positions.

rl`he gaging ot the stencil cards may be ei'lected by means of tivo outwardly projecting' members at the ends ot' a plateY which serves to hold one edge oit the usual backing' on the platen. These projections are in substantial alignment to correspond to the ends o' the flange formerly used 'tor sncli purpose when no ribbon Was used back ot the stencil card. In the present case the 'li-ange is yomitted between the end projections to enable a rib-bon to be ted around the platen.

To cast oit the knnrled or toothed rolls which press the edgeJ ot the stencil card against the toothed bands or rings on the platen, disclosed in the applications referred to, provision is made of a linger-piece conveniently located` adjacent the finger-piece on the platen, and mounted on a shaft which extends parallel to tliexplaten, and is provided with cams to engage pins on pivoted arms carrying the knurled rolls, the cams being provided with reces-"es to receive the pins When the knurled rolls are in either effective or cast oliq positions. Provision is also made Ot'i'neans for adjusting the pressure of the kn'u'rled rolls against the toothed bands on the platen.

The means for feeding the ribbon around the platen co`i`i'iprise3I gears on the ends of ribbon-spooi-rotating shafts and displaced relatively to each other longitudinally of the platen, and a gear mounted on a` shaftt reciprocable longitudinally oi the platen to bring the gear thereon into mesh with either one ot the gears on the ribbon-spool-rotating shafts. The reciprocable shaft is springnrged to one ot its limiting'V positions and may be moved in the Opposite direction by a resilient lever mounted to swing about a pivot parallel to the shaft. The resilient lever is provided with -a cam step to move the sha-tt longitudinally and `.its resilient quality permits it to yield when the gear on the r ciprocable shaft tails to mesh prop- Verly with the gear farthest from the resilient lever.

The invention also relates to improvet ribbon-roll structure and to the manner of n'iounting' the feediolls. V

Other features and advantages ivill here-V inafter appear.`

ln the accompanying' dranvinges Figure 1 is a' `front elevation showing the i'nve-i'ition applied to the platen frame of an Underwood standard typeivriting` machine.

Figure 2 is a side elevation.

Figure 3 is a sectional tide elevation. the section t' l' 'being tenen along line 8 3 o Fig'- ure 1 nd the viciv being taken in the direction or the arrows.

Figure d is a view showing one position oi' the lever by means ot' ivhich the 'lin'iiting position ot' the platen in one direction is varied.

Figure 5 is a vieiv similar to Figurel #l but showing' the lever in a different position.

Figure 6 is a top plan view, paitly in section, oi: the structure shown in Figure 1.

Figure. 7 is a view similar to Figure 8 but with va` stencil card inserted and the section being taken On the line 7-7 of Fig. ure (i.

Figure 8 is a perspective View ot the member which serves to hold the lower edge ot the celluloid backing in position, the projections at the ends thereof seiving as gages for the lower edge of the stencil card.

Figure 9 is a` top View, partly in section, showing the ine-ans for regulating the spring pressure ot the lrnuiled rolls against the toothed rings on the platen.

Figure 1() is a vie-w ot' the lett end et the rea ribbon-roll shown in Figure (i.

Figure 11 is a view showing substantially the` saine parts as Figure 9, but in separated relation.

Figure 12 is a fragmentary view showing one oi' the linurled rolls in cast-oil' position.

'A cylindrical platen-core 11 of wood, or the like, is mounted on a platen-aide 12 journalcd in the ends 13 ot a platen-iframe 14 comprising` a rear papentable- 15, a rod 16 for the usual paper-lingers, not shown, and a rod 17 joining the ends 13 beneath the platen. Brackets 18 lixed on the rod 17 sur port the usual rock-shalt 18 by which the usual reed-rolls are cast olii. Finger-wheels 19 are provided on the ends of the platen` axle 12, and the platen may also be rotated by line-spacing mechanism, comprising a ratchet-wheel 20, mounted on the platen` axle 12, a pawl 21 pivoted on a slide 22 and a line-space lever .23 by which the slide 22 may be moved rearwardly against the action ot a spring 24.

The present invention contemplates the typing or .cutting ot stencil cards, such as shown at 25 in Figure 7. Such stencil cards usually comprise a center 26 of stencil material and a traine 27 of paper or other suit able material. inasmuch as the stencil cards 25 overlie only a comparatively short central section et the platen, only the necessary central section'oli the platen-core 11 is covered by an envelope 28 ot rubber or the like. Mounted on the platen-core 11, at each side oi" the envelope 28, are toothed or serratedL rings or bands 29 to engage the sides of the traine 27 ol' a stencil card, the stencil card being held against the rings 29 by means of knuiled or toothed rolls 30. To furnish suitable support for the stencil material 26 during typing, provision is made et' a backing strip 31 ot suitable material, such as Celluloid, secured in position by means of upper and lower bars 32 and 33, respectively, overlying the corresponding edges ot the backing strip 31 and secured to the platen. by suitable means, such as screws The bar 33 is proif'ided at its upper edge with projections 35 to gauge the lower edge of a stencil card 25 to be inserted in the machine. Heretofore, in certain cases, provision has been made of a flange extending along the full length oi the member corresponding to bar 33, but, in the present case, the central portion of the flange is omitted tor a purpose to be brought out hereinafter.

Extending across the rear of the platenframe, and secured to the ends thereof by screws 35, is a rod 36 extending through bosses 37 on the rear ends of arms 38, which may be secured at any desired positions along the rod by means ot' set-screws 3&1. tlaid arms 38 are also supportedV by means ot the rod 16, which passes through openings 40 o'l su'liicient size to permit adjustment ot' the arms relatively to the rod. Such adjustment may be obtained by means ot a plate 4l iitting over the rod 1G and secured to the ai- 38 by means olz screws 42, as more fully disclosed in said co-pending ap` plication, Serial No. 595,235. Each arin 38 is provided at its forward end with an inuni-diy-extending member 43, which, with a resilient member 44, forms a guide for one edge of a steiicilfcard, the members 43 and being held at a suitable distance apart by means ot a spacer 45, the parts 43, 44 and 5 being held in proper relative position by ieans or" screws To assist in guiding the card between the members 43 and 44, the upper ends of these members are iriared rearwardly and forwardly, respectively, and

the spacer45 is beveled atits'inner edge as indicated in Figure 1. As shown in Figures 1 and 2, each kgnids-member 44 is provided with aj narrow extension 47 which is bent around the shaft 18 at the bottoni oi" the platen-traine.

Each guide-member 44 is also provided with an opening 48, through which the corresponding roll 30 engages the adjacent toothed band 29, the opening 48 having an upward extension 49 to receive the end of a lever 50,7011 which the roll 30 is supported by means ot' a pivot-screw 51. Each lever 59 is pivotally supported by means of a screw 52 passing through the adjacent arm 38 and the (lepending end of a tongue 53, bent inwardly from the arm 38, and then downwardly parallel thereto, and is urged to press the roll 39 against the band 29, by means of a spring 54 engaging a pin 55 projecting Ifrom the lever adjacent the guide-ii'ien'iber As shown in Figure 1, the upward extension 49 o the opening 48 is ot suliiciciit width to permit the forward end of the spring 54 and the pin 55 to pass therethrough.

The position of the rolls 39 is determined by means oi' a. Afinger-piece 5G, secured to the lett-hand end of a shaft 57, jouinaled in the arins 38. Adjacent the levers 50, a cam 58 is secured to the shaft 57, by means oi' a setscrew 59. As shown in Figure 7, each cam 58 engages a laterally-projeeting pin G0 at the rear end o'tl the adjacent lever 50, and is provided with an incline G1, such that a rearward swinging of kthe linger-piece 56 vill permit the corresponding roll 30 to be iio pressed against the adjacent band 29, but forward movement of the finger-piece 56 will` cast cti' theroll 30- Each camf58., is also provided, at the ends of the incline 61, with depressions 62, into which the pin 60 may drop and serve to hold the finger-piece in the position to which it has been moved.

According to the present invention, the pressure of each roll 30 on the corresponding band 29 may be adjusted. To this end, the spring 54, at its rear end, is bent around a bushing 63, and its end is inserted in a slot- 64, as shown in `Figure 11; and the spring is held in position on the bushing by a collar 65, having a hexagonal exterior to permit it to be embraced by a` wrench, and a rib 66 extending across the interior thereof, to enter the slot 64, thereby holding` the end of a spring in the slot 64 and connecting` the collar 65 to the bushing 63 for turning the same. The bushing 63 may be secured to the adjacent arm 38 by means of a screw 67 extending through the bushing 63, the arm 38 and into a nut 68. It will be evident that the tension of the spring may be adjusted by placing a wrench over the collar 65, loosening the screw 67, turning the bushing 63 to the desired position, and then tightening the screw 67.

The'rotative movement of the platen may be limited by means of a pin 69 projecting inwardly from the right-hand end 13 of the platen-frame into a slot 70 in a cap 71, secured on the platen-core 11 by means of screws 72 and 73, as shown in Figures 5 and 6. It is desirable, at times', to vary the line ,on which the typing is begun at the top of the card. To this end, provision is made of a lever 74, pivoted on the cap 71, by means of a screw 75, for swinging movement across the slot 70. The screw 75 is positioned sub stantially opposite one end of the slot 70, and has a thrust-arm 76 extending across the end of the slot 70 and provided with two pin3 receiving seats 77 and 78, respectively, which may be positioned over the slot, as shown in Figures 4k and 5, respectively, the thrust in each case being received directly on the pivot 75. As shown in Figure 4, the movement of the lever 74 in onev direction is limited by the engagement of th-e thrust-arm 76 with a bushing 79 projecting from the center of the cap 71, the lever 74 being detained in this position by means of a detent-device 80 on the lever -in connection with a depression 81 on the cap. The lever 74 is curved throughout a considerable portion of iis length, so as not to extend beyond the periphery of the cap, and their is turned outwardly to providev a suitable support for a handle 82, in a convenient posit-ion` for operation by the typist. When the lever 7 4 is shifted to bring the pinfreceiving seat 78 over the slot 70, the curved portion of the lever 74 will engage the bushing 79 to limit the movement of the lever,and the latter will be detained in th s position by means of the detent-device 80 engaging in adei pression 83 in the cap.

other, so that the left hand of the typist may be used either to rotatefthe platen or to cast off the rolls 30.

To make the typing visible, ya ribbon 86 is fed between the stencil-card and the platen, and the typing impressions are inked thereby and made visible. The ribbon 86 is secured at its ends to a front roll or core 87 and a rear roll or core 88, and may be wound on either roll and unwound from the other. As disclosed in Figures 6 and 10, the ribbon :s attached to the rear roll 88 by means of a retainer 89, having` a straight portion 90 topress the ribbon into a groove 91 in the roll, and spring-arms92 to permit the straight portion 90 to be lifted out of the groove preparatory to placing the end of the ribbon over the groove andA returning the retainer to eiiective position. The roll 88 is also provided with a slot 93 for connection with a. suitable driving means.`

rlhe ribbon-winding mechanism is supported principally by two plates 94, having slots 95 and 96, to iit down over the rods 36 and 16, respectively, each of the plates 94 being held in position on said rods 36 and 16 by means of a screw 97 threaded through a block 98 and engaging the lower part of the rod 36,v as shown in Figure 3.` Each block v98 may be. secured to the corresponding plate 94 by means of screws 99. Fixed at their outerends in the plates 94 are left-hand sleeves 100 and right-hand sleeves 101. Passing through each of the leftehand sleeves 100 is driving shaft 102, having at its righthand end a spool-head 103 provided hifi with an extension 104 to enter the slot 93 of the adjacent roll. At the lefthand ends, the forward and rearward shafts 102 are provided with gears 105 and 106, respectively, offset with respect to each other, as shown in Figure 6.

Passing through each of the sleeves 101 isa shaft 107, carrying a spool-head 108 passing through the corresponding ribbon roll or core. Each of the shafts 107 is provided with a reduced end 109, which lits into a recess 110 in the end of the corresponding shaft 102, and with a lnurled head 111 to facilitate its insertion andremoval, and with a groove 112 just inside of the knurled head to receive a latch'ng lever 113, pivoted at 114 on the right-hand plate 94. It will be evident that, when the levers 113 are in their iso normal positions, the shafts 107 will be held against longitudinal movement, and that, when the upper ends of the levers 113 are swung rearwardly to bring the lower ends of the levers in contact w'th stop-pins 1141, the levers 113 will be retained in such positions by means of detent-projelctions 115 thereon engaging recesses 116 in the right-hand plate 94;. lhe shaft 10T may then be removed or inserted without interference. n

y The ribbon-rolls S7 and 88 may be driven by means of the line-space lever 23, and the slide 22 in the usual manner, motion being transmitted from the slide 22 by means of a link 11i to an operating arm 118, loosely mounted on a shaft 119, journaled at its right-hand end in the left-hand plate 94 and at its left-hand end in a bracket 120, secured to the top of the left-hand end 13 of the platen-frame by means of screws 121. lrlounted on the shaftl 119, adjacent the operating arm 118, is a broad ratchet-wheel 22, tolte actuated by a pawl 123, mounted on a pivot 1241 on the operating arm 11.8, and urged into engagement with the ratcheta'heel 122 by means of a spring 125. Retrograde action of the ratchet-wheel 122 is prevented by a pawl 126, mounted on a pivot 2T on the'bracket 120, and urged against the ratchet-wheel 122 by means of a spring 12S.

Fixed on the shaft 119, near its right-hand end, is a gear 129nor1nally in mesh with the gear 10G, due to the action of a spring 130a interposed between the right-hand face of the gear 129 and the left-hand plate 94. Vslhen the gear 129 is in this position, actuation of the line-space lever will cause the ribbon SG to be wound on the rear core 38 and unwound from the front. core. When it is desired to reverse the direction of feed of `the ribbon, the shaft 119 is shifted to the right suiiiciently to bring the gear 129 thereon Vinto engagement with the gear 105. It should be understood that the breadth of ratchet-wheel 122 is sufficient to maintain the connection with the pawl 123, irrespec- -tive of suc-h shifting of the shaft 119.

As herein disclosed, the shifting of the shaft 119 is effected by means of a resilient ever 130, pivoted on the bracket 120 by means of a screw 131. The lever 130 is provided at its upper end with a knob v132 for engagement by the fingers, and is provided at its lower end with a cam-step, as illustrated in Figures 1 and 2. When the knob is pulled forwardly, to bring the lower part of the lever 130 against a pin 133 on the bracket 120, the shaft 119 will be in its leftlland position, as indicated in Figure 1. 1li/Then, however, the knob 132 is shifted rearwardly, the shaft 119 willrbe cammed to the right sufficiently to bring the gear 129 into mesh with the gear 105. Operation of the line-space lever 23 .*illrthen rotate the forward ribbon-core 87 and reverse the previous direct-ion of feed.

l/Vhen one of the shafts 102 is released from the driving-shaft 119, and the other shaft 102 is driven, the released shaft may overrun. To avoid such overrunning, provision may be made of suitable retarding means, such as a friction-spring 134, as shown in connection with the gear 106 in Figure 6.

In practice, the typing of a stencil-card 25 may be effected substantially as follows. The rolls 30 are cast ofi' by means of the finger-piece 56, and the stencil-card is inserted downwardly through the guides and gaged by the projections 35, as indicated in Figure 3. The linger-piece 56 is then swung rearwardly to render the rolls 30 effective, and the handle 84 is swung forwardly to feed the' stencil-card to the position shown in Figure 7, preparatory to typing on the upper line of the card. It will be seen that the finger-piece 56 and the handle 84 are so located that they may be conveniently actuated in succession by the left hand of the typist. Line-spacing of the card 25 may be effected byk the line-space lever 23. The lever 7st for determining the extent `of 'the inserting movement of the platen-core is usually set as shown in Figure 4, but, when it is desired to type at a higher position on the card, the lever 74 is thrown to the position shown in Figure 5.

Upon completion of the typing, the card may be grasped by the typist and drawn out of the machine, the platen being restored in this manner to its initial position for the insertion of another card. 1 The rolls 30 may then be cast olf preparatory to the insertion of another card.

Variations may be resorted to within the scopey of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination with a cylindrical platen having thereon feeding rings so spaced as to engage the edges of a card. of ak handlesecured to the platen at one side of the card-feeding ringsA 2. In a typewritingmachine, the combination with a cylindrical platen, of a handle secured to the platen intermediate its ends for effecting partial rotation of the platen, and means for limiting the rotative movement of the platen, comprising a finger-piece on one end'of the platen shiftable to different positions to vary the extent of movement of the platen.

3. In a machine for typing stencil-cards, in combination, a cylindrical platen, a backing strip over which a stencil-card is positioned during typing, and a plate with upstandingprojections at its ends secured to the platen to hold the lower edge of the backing strip against the platen, the v11pstanding projections serving to gage' the lower edge of the stencil-card to be inserted andbeing. spaced apart sufficiently to permit an inking ribbon to be fed around the platen back of the stencil-card.

d. ln a typewriting machine, a revoluble platen having in one end an arcuate slot con- Vcentric with the platen axis, a fixed stop projecting into said slot, and a member mounted on the end of the platen for move ment across the slot to vary the effective length thereof.

5. In a typewriting machine, a revoluble platen having in one end an arcuate slot concentric with the platen axis, a fixed stop projecting into said slot, a member mounted on the end of the platen for movement across the slot to vary the effective length thereof,

and means to detain said member inV any po-v Y platen having in one end an arcuate slot concentric with the platen axis, a stationary pin projecting into said slot lto limit the movement of the platen, and means to vary the length of the slot, comprising a lever pivoted at a point substantially in a prolongation of the slot and having an arm t0 be engaged by the pin, the pressure ofthe pin acting substantially longitudinally of said arm' and against the pivot.

8. In a typewriting machine, a revoluble platen having` in one end an arcuate slot concentric with the platen axis, a stationary pin projecting into said slot to limit the movement of the-platen, and means to vary the length of the slot, comprising a lever pivoted at`a point substantially in a prolongation ofthe slot and having a thrust arm ,having two pin-receiving seats in its ends at different distances from the pivot.

9.111 a typewriting machinefor typing address stencil-cards, in combination, a platen 'having spaced stencil-feeding rings for feeding` a stencil-card tangentiallyto the platen without bending it, spring-urged feedrolls co-operating with said rings to feed the stencil-cardameans controlling the feedfrolls to malte them effective when a card has been'inserted between the feed! rolls and the platen, and a crank-handle attached to the platen at one side of said rings proximity to the feediroll-controlling no" .the inserte@ sten'- senesi?? .quietly-saai cilcard down a short distance to iirstwriting-line position immediately after the feedrolls have been made effective.

10. In a typewriting machine for typing address stencil-cards, in combination, a platen, means for guiding the stencil-cards tangentia-lly across tlielface of the platen, stencil-card-gaging -means on the platen, means for limiting advance 0f the platen to locate the stencil-card-gaging means in position to intercept an inserted stencil-card, feed-rolls co-operating with the platento feed the stencil-card, and a crank-handle i fast tothe platen for quickly rotating Vthe pla-ten to feed the stencil-card 'down a short distance to first writing-line. position.

11. In combination, a cylindrical platen, afeedsroll to 'run'thereom a pivoted arm to support Vsaid feed-roll, a spring having one end in engagement'with the arm to press the feed-roll'against the platen,` and a rotatable adjusting device comprising a ro tatable bushing having across one end` al straight slot to receive the corresponding end of the spring, and a collar to lit over the bushing and having a web extending across the opening to fit into the slotwben the collar is placed over the bushing.

l2. In combination, a cylindical platen,

a feed-roll to run thereon, a pivoted arm to 5' support said feed-roll, a spring having one end in engagement with the arm topress the feed-roll against the platen, and a rotatable adjusting Idevice comprising a ro-V tatable bushing having across one Vend a straight slot to receivey the corresponding end of the spring, and a collar to lit over r the bushing and having a web extending across the opening to fit into the slot when the collar is placed over the bushing, and a periphery suitably shaped for effective en-VL gagement by a wrench.

13. In a typewriting machine, a platen, line-spacing mechanism for the platen, and means for feeding` a ribbon aroundpthe platen comprising two parallel shafts for winding opposite ends of the ribbon, gears on said shafts displaced relatively to each other longitudinally of said shafts, and a longitudinally reciprocable shaft having1 fixed thereon a gear to mesh with'eitlier of the gears on the ribbon-winding shafts and a ratchet-wheel actuable by the line-spacing mechanism.

'14. In atypewriting machine, a platen, line-spacing mechanism Vfor the platen, means for fee-ding a ribbon around the Vplaten comprising two parallel shafts for )windinglopposite `ends ofthe ribbon, gears on 'said shaftsv displaced relatively to each other longitudinall'y o f said shafts, and a re ciprocableshaft having'fixed thereon a gear to me` 1 with either "of the gears on lthe l iig means including a resilient cam-lever swingable across the end of the reciprocable shaft to' shift it for reversing the feed of' the ribbon. i

15. In a typewriting machine, a platen, line-spacing mechanism for the platen, means for feedinga ribbon around the platen comprising two parallel shafts for winding opposite ends of the ribbon, gea-rs en said shafts displaced relatively to each other longitudinally ofsaidshafts, and a reciprocable shaft having fixed thereon a `gear lo mesh with either of the gears on the ribbon-windingshafts and a ratchet-wheel actuable by the line-spacingfineehanism, and means ineludinga resilient cam-lever swingable across the end of they reciproeable shaft to shift it for reversing;` the feed of the ribbon, and yieldahle in case of failure -of the gear on thereciprocable'shaft to mesh with the gear toward which it is .urged by said lever. f

Y 16. Ina typewriting machine, platen, a platen-frame, two rods'extending from Vside to side of the platen-frame, two plates slotted to rest on said rods,- means to secure the plates against movement along' the rods, sleeves extending inwardly from the two' shaft and hold it against'longitudinal movement. v l?. In a typewiiting machine, a .rr-,voliihlt` platen, a platen-frame, arms supported at the rear of the pla-ten and extending to the front thereof, card-edge guides at tlieforward ends of sai-d arms, feed-rolls to press against the laten ad'acent said Ouides levers )ivoted on said arms and having the feed-rolls pivoted on their forward ends and 4laterallyextending pins at their rear ends, a-guideshaft extending across the pla ten-frameabove the rear ends of said levers, and pin-.engaging cams on said shaft and comprising inclines to shift the pins to cast-olf or VVrestore the rolls, and recesses at the endsof the inelines to receive the` pins to detain'tlie cams in their limiting positions; f

18. In a typewriting'machina theA combination with a platen Vfor a stencil-card, of a gage on the1platen in the pathof the stencil-card, the gage-being rotatable .with the platen, and thestencil-cardbeingstift and therefore feedable tangentially y.with reference to the platen, a` handle yfast to the platen to feed the stencil-card downto writing position, and iiieans.- to ,arrest the stencil-r ...Ca-rd after the sage has left oatact with the stencilfcard to locate the card in writing position.

k19.. In a typewriting machine, the combination of a rotatable platen, line-sl'iacing line-space direction to feed the work-piece into the machine, and stops means for limitingv the reverse movement .of the platen.

20. In a typewriting machine, the combination of a revoluble platen movable with aforward line-feeding movement in the typing operation, and valso in a reverse direction to feed a piece of work to typing` position, anger-piecepivoted on 'the end of the platen, a carriage for 4the platen having aastop located in the pathy traversed by the finger-piece during the rotation of the platen in the aforesaid reverse direction, said finger-piece 'being movable toz dispose different portions thereof for engagement with the stop, for stopping the platen in different rotative positions, and correspondin'gly determininU the lineof typing` on the piece of work, and means for limiting the movement of the finger-piece in either of two directions to thus determine the portion of ythe finger-piece which will be disposed for engagement with the stop.v

21. Ina typewriting machine, tliecombination of .a revoluble platen, a platen-frame to support said platen, two co-operative stopelements .to ,limit therotation of the platen, one of said stop-elements being-carried by the platen, and theother stop-element being carried bythe platen-frame, one of said stopelements i havingr a. plurality Vofvstops arranged in stepped relation thereon and being' pivotally supported, and a finger-piece to set the pivoted stop-element to ,fbringvany vone of its stops into effective relation with the co-operative stop-element to vary the rotation of the platen.

22. In a type'writingl machine, the combination of a platen having agage thereonifor a vstencil-card, means for line-feeding the 'platen forwardly, lmeans for stunning the forward movement ofthe platen at a .point where the gage is in aposition to beengaged by a stencil-card asit isrfedk to the machine, a finger-piece secured .to the platen for moving it-in the reversedirection, meansA for guidingthe stencil-card downwardly in front-ofthe platen during the reverse mov-ement of the platen,and-means for stopping the reverse Ymovement ofthe platen at a point where the stencil-card yis.-properly pcizo sitioned @receive-.the first line, of typing.

23; In a typ-ewriting machine, the eoginbinat-iongof revohible platen, 'means ,on vthe platei flor gaging a piece o'ffwork' as it is fed to the machine, a finger-piece moniited -diteient positions relative to tlie platen, a Carriage having a. stop thereon located in the path traversed by the finger-piece in the rotation oit' the platen, and means 'for limiting the movement of the finger-piece in either of two directions, said finger-piece when at its limits of movement having predetermined relations to* the gag'ing means l0 y[or determining the positions at which the piece of Work receives the. first line of typ` ing. i

ALFRED Gr. F. KUROVSK, 

